The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
May. 18, 2009
Yongsuk Park, Seoul, KR;
Seung-woo Seo, Seoul, KR;
Dong Hyun Je, Seoul, KR;
Sung Woo Kim, Seoul, KR;
Jun Sik Lee, Seoul, KR;
Yongsuk Park, Seoul, KR;
Seung-Woo Seo, Seoul, KR;
Dong Hyun Je, Seoul, KR;
Sung Woo Kim, Seoul, KR;
Jun Sik Lee, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
SNU R&DB Foundation, Seoul, KR;
Abstract
A system and method of updating a key based on communication and security damage costs are provided. The key updating system for group communication between a plurality of group members, includes a key update cycle determining unit to determine a key update cycle based on a communication cost and a security damage cost, and a key updating unit to perform a key updating with respect to one or more group members of the group communication based on the determined key update cycle.